HALO527, welcome. I'm sorry that you are going thru this with your son, your experience is so sad. I'm glad you found us.
I have no experience in what you're dealing with, I would just like to offer my support and warm wishes for you to find the solutions to keep your son safe and treated fairly.
While you're going thru this, please remember to take care of yourself as well. I don't know if this is relevant or helpful in your particular situation, however if it feels right to you, check out NAMI, the National Alliance on Mental Illness, you can access them online. They offer parent courses for us, where you can find information, resources, support and guidance. It may be worth a phone call just to see if they offer anything which may be able to give you some peace and solace. Many of us here have private therapists to give us a safe place to get support and feel seen and heard. This is very hard stuff to deal with. I hope you have a good support system in place.
It helps to share our stories, so I hope you will continue posting. We'll circle our wagons around you and do our best to support you. You're not alone. We understand.